| Term | Definition |
|---|
| ecosystem | a system formed by the interaction of a community of organisms with their physical environment |
| biotic | living parts in an ecosystem |
| abiotic | nonliving parts in an ecosystem |
| organism | individual living thing |
| species | group of organisms that can interbreed and produce fertile offspring |
| population | all members of the same species in an area |
| community | all populations that live in an area |
| habitat | place an organism lives |
| natural selection | process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest |
| evolution | change in, change over time |
| Charles Darwin | naturalist who observed natural selection |
| adaptation | inherited favorable trait |
| artificial selection | selective breeding |
| resistance | ability of an organism to tolerate a chemical designed to kill it |
| archaebacteria | bacteria that lives in extreme conditions like hotsprings and methane rich environments |
| eubacteria | common bacteria |
| fungus | organism with nuclei and cell walls used to decompose |
| protist | most are one-celled organisms; must live in water |
| plants | multicelled organisms that make their own food by photosynthesis |
| animals | multi-celled organisms with no cell walls; people, dogs, cats |
| gymnosperms | plants that produce seeds in cones |
| angiosperms | flowering plants |
| invertebrates | animals that lack backbones |
| vertebrates | animals with backbones |
Combine with other sets
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